Dude Obama's team was the first to spearhead true micro targeting. Their Voter Activation Network (VAN) was even bought by the Liberal Party of Canada, and forms the core of their Liberalist voter tracking software.
They all do. I have Canadian friends I know from all the parties working on campaigns. They're basically Americans, just looking for career opportunities. They are not foreign agents with a foreign agenda, and this is not the scandal you are making it out to be.